Trigonometry (from Ancient Greek τρίγωνον (trígōnon) 'triangle' and μέτρον (métron) 'measure') [1] is a branch of mathematics concerned with relationships between angles and side lengths …

Dec 12, 2025 · Trigonometry, the branch of mathematics concerned with specific functions of angles. There are six functions commonly used in trigonometry: sine (sin), cosine (cos), …

Trigonometry helps us find angles and distances, is used a lot in science, engineering, video games, and more! The triangle of most interest is the right-angled triangle. The right angle is …

Trigonometry is the branch of mathematics that deals with the relationship between ratios of the sides of a right-angled triangle with its angles. The ratios used to study this relationship are …

Trigonometry is a branch of mathematics that focuses on triangles. Specifically, the relationship between the angles and sides of triangles. Trigonometry is derived from the Greek word …

Trigonometry (named based on a Greek word that loosely translates to "measurement of triangles") is a branch of mathematics that studies the relationships between the sides and …

Learn about trigonometry, and its relationship to triangles, especially right angled triangles. Find out about the basic functions of sine, cosine and tangent.

What is a Radian? What are Cofunctions?

We have, in the previous section, already discussed the three basic theorems of trigonometry that you should know. There are also useful "addition theorems" of trigonometry, which describe …

Master trigonometry with clear explanations, step-by-step solutions, and free guided notes at Understand the Math. This page covers angles, right triangle trigonometry, trigonometric …